In which of the following experiments could we NOT use random ...

[stephzh]

In which of the following experiments could we NOT use random assignment?
 
  a. a comparison of groups receiving three different levels of a drug
  b. a comparison of driving errors with and without consuming alcohol
  c. the comparison of people from several religious groups in terms of acceptance of others' beliefs
  d. None of the above could use random assignment.

Question 2

Which of the following do NOT go together?
 
  a. categorical data, frequency data
  b. measurement data, quantitative data
  c. quantitative data, frequency data
  d. frequency data, count data

[covalentbond]

Answer to Question 1

C

Answer to Question 2

C